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1997 Buick Park Avenue 3.8L engin run badVIN: 1G4CW52K7VCame in with miss fire and mil flashing. Wires and plugs
old and replaced. No help and can smell cat.Dropped cat no
help. Checked compression on #5 170 psi.Indexed #1 and
checked timing with light and looks good.Checked wiring of
plugs and good,done one at a t...

2005 Buick LaCrosse CXL 3.8L evap. systemVIN: 2G4WD53225this buick has dtc po442, small evap leak. smoked system,
no leaks found. for some reason i cant get my scanner to
command the solonoids to open and close. just wondering if
anyone seen common problems with these lacrosses. someone
already replaced the fuel ca...

1998 Chevrolet Blazer 4.3L No StartVIN: 1GNCS13W5WHello everyone,
Have a vehicle in the shop which loses fuel pressure
quickly after start-up (when only turning on ignition
switch without running engine). Shutting off the switch we
lose the fuel pressure instantly to zero psig. We initially
recommended to re...

2006 Chevrolet Malibu LT 2.2L Brake LightsVIN: 1G1ZT51F16Hey All,
I had this vehicle in today and can not get my Tech2 to
calibrate the brake sensor. It gets hung on the "in
progress' screen and will not continue. (how long does it
usually take?)
In the data stream you can see it is unlearned, it sets a
calibratio...

1999 GMC K1500 Suburban SLE 5.7L DriveshaftVIN: 3GKFK16R6XWe have a ’99 4X4 GMC Suburban that is making noises. The
history is as follows: 1.) The noise is a rattle / ratchet
coming from the xfer case and/or the differential. 2.) The
front driveshaft was replaced (by another shop) and the
noises started. 3.) The fron...

2002 Pontiac Grand Am GT 3.4L pressure control solenoidVIN: 3456789E92hello and thanks in advance. This car came in with shutter
on. the shifts, fluid burnt lots of material in pan. We
removed the trans and replaced it with a totally different
unit. it still shutters on the shifts.All pressures are
good in all ranges sitting sti...

2001 Cadillac DeVille 4.6L power windows and locksVIN: 1G6KD54Y81Got it!! It turned out to be one of the small gauge orange battery feed wires at the "B" post plug. It was broken inside the wire casing and when tugged on did not give any. When checking voltage I was doing so with the B post plug pulled out of the jam area a...

2007 Cadillac Escalade ESV 6.2L Ride ControlVIN: 1GYFK66867Thanks to all who helped me/our shop with your responses. Turns out the customer ended up trading in his Cadi for a Dodge Diesel. Sorry I couldn't help with any other solutions or answers to his problem Cadi.

1994 Chevrolet P30 7.4L FluidVIN: 1GBKP37N8Rpractically all u members were correct n it was full of air i just could locate that little bleeder as it was @ right side towards rear n bleeder was so small.guess i was lookin for a #10 r 3/8 size but it was covered w/stuff a piece of tape i`m thinkin somone...

2000 Chevrolet Malibu 3.1L MIL Lamp onVIN: 1G1ND52J1YThanks to everyone who took the time to respond. Several of you were correct, it was the fuel pressure sensor keeping me from running my tests. It just so happens that the pressure sensor solved the DTC problems as well. I was able to run the evap monitor t... Trouble codes: P0443 (Evap Purge Ctrl Valve CKT malfunction), P0446 (Evap Vent Control malfunction).

2002 Chevrolet Impala LS 3.8L Oil pres.guageVIN: 2G1WH55K92Looks like we had 2 problems 1 the sending unit was hemoraging oil and the ground at the trans was bad,ther is only one sensding unit and thats for the guage If the guage indicate low oil pressure the DIC lights the low oil pressure waening light, Thanks to Al...

2003 Chevrolet Avalanche 1500 5.3L Reverse gearVIN: 3GNEC13T13Hi again guys, it took me a while to figure this out on my own 4L60E (2003) tranny, all that replied were right. somehow the lo & reverse clutch support assembly retainer pop out and went in between the case and the sun shell and lock the shell and completely ...

2007 Chevrolet Suburban 1500 LTZ 5.3L LifterVIN: 1GNFK16337Thank you all for your advice. I put both options to the customer and he opted not to marry me. We are going to get an updated engine from GM and install it for him.
You all are the best!

2004 GMC C7500 Topkick C7C042 7.2L AbsVIN: 1GDJ7C1C14Well, I had to give the truck back to the customer because he still has to use it. He is supposed to bring it back but since I do not know when, I will close this and update if/when I find something useful. I had already checked the ground on the frame under t...

2007 Hummer H3 3.7L DrawVIN: 5GTDN13E17Thank you to all that replied. We didthe battery test over night and both batterys held firm at 12.7v. So we put her battery back in and with the help of a TSB that stated the Onstar modules can make random unwarranted calls at times we pulled the fuse for Ons...